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Image of bacterial community succession. For example, filled diamonds: first dominant (Pseudomonas), open squares: second dominant (Acinetobacter or Ralstonia), filled circulars: third dominant (Variovorax). Practical population densities of Pseudomonas, Acinetobacter or Ralstonia in the chemostat bioreactor are unknown but that of Variovorax is shown (17).
